Ore-crusher and metal-separator



(No Mbdel.)

J. G. WISWELL. ORE GRUSHER' AND METAL SBPARATOR.

Patented Apr. 9, 1889.

UNITED STATES PATENT OFFICE.

JACOB CHARLES WISWELL, OF' MEDFORD, MASSACHUSETTS, ASSIGNOR TO THE WISWELL ELECTRIC MINING MACHINERY COMPANY, OF PORTLAND,

MAINE.

.ORE-CRUSH ER AND METAL -SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 400,988, dated April 9, 1889.

Application filed September 30, 1887. Serial No. 201,086. (No model.) i

To all whom it may cancer-rt.-

Be it known that I, JACOB CHARLES .WIs-

WELL, of Medford,in the county of Middleing metals from their ores or other substances which may be associated with the metal or metals to be extracted; and it consists in improvements on Letters Patent of the United States granted to me April 1, 1884:, No. 296,096; November 51;, 1884, No. 307,513, reissued November 3, 1885, under No. 10,659; "February 9, 1886,'No. 336,030, and March 9, 1886, No. 337,726, and whichis hereinafter fully'described, and particularly pointed out in the claim. g

Similar letters of reference indicate like A several figures of drawings. I

In the drawings which accompany this specification and form a part thereof, Figure 1 is an elevation of my'improved ore crusher and separator. Fig.2*is a vertical transverse section of the same, taken on the line yy, Fig.1. Fig. 3*shows the electricexcitant and connection therefrom to theplate or plates electrically insulated from any and all other i parts of the mill.

Referring to the drawings, the 'bed A is an annular ring resting on a foundation of wood or other suitable material.

ably secured to be renewed when worn out. The interior contour of the wearing-plates B is made to conform to the peripheral shape of the rolls 0. The body 20 of the said rolls is made hollow, asshown' inFig. 2." This Firmly secured to the body w of V the rolls Q:

are the sectional tires a5, which may be made of metal of such quality or hardness as to best with stand the abrasive action of the matewhich are rounded 011', as shown, to anticifeather-keys e, either in the shaft E or in the Depending from the under side of the pe- The upper sur face of the bed A is recessed in the form of a circular V-groove, into which wearing-plates .B of similar exterior contour-may be detach rial being reduced.- The outer grinding-surfaces of the said rolls C, from the apex a; to the corner b, form the arc of a circle,,with the exception of the saidpoin ts a and I) named, pate the form the said rolls will assume by wear in use, whereby-new tires as orwearingplates B may replace those worn out, while at the same time insuring an approximate fit between the grinding-surfaces of the tires 00 and Wearing-plates B.

The rolls C may be of anydesired number, and are each firmly secured to an axle, c, the inner ends of which are journaled to the pendent portions 11 of the carriagev D, as clearly shown in Fig. 2.

The carriage-D is fitted to the vertical shaft Erin such a manner as to permit of vertical movement on said shaft E, while by means of hub f of the carriage D, and fitting into cor-- 7 responding grooves or recesses, a rotary mo-- tion will-be imparted to the said carriage D when the vertical shaft E is made to revolve. ripheral rim of'the carriagefD' are hounds or bifurcated projections g, which inclose the sides of the axle c, or the boxes h, inclosing the same, whereby rotary motion can be imparted from the shaft E and carriage D to the axles c and'rolls O. r

In order to add to the weight .of any roll 0 which might by lack of its own gravity be unable'to crush any portion of the material being operated on, I have found it advisable to inte'rpose between the axle-boxes h and carriage D springs 1', which permit of one roll ,C rising and assuming an increase of weight from the said carriage; resulting from-its rise' on the shaft E, and consequent relief of 0 weight from all the other axles 0. Should it be desired to still further add to the weight of the rolls 0, the carriage D may be weighted,

in which case the springs z'would be compressed to an undesirable extent,leaving' in- 5 sufficient space for increased compression by the accidental rising of one or more rolls 0, at thesame time inclining the upper 'part or parts of the saidroll or rolls inward to such an extent as to seriously interfere with rapid mo constitutes both adj usting-screw and oiler, the

upper, f, being made in the form and for the purpose of holding oil and waste in the usual manner, and screwed by a cap, f. The orifice o in the screw K leads down to the follower f ,which has a continuing orifice, 0, extending down to the boss b, which is counterbored to receive the tube containing the said orifice 0 thus insuring continuous and regular lubrication to the axlesc without unnecessary waste of oil. r

'Motion is imparted to the shaft E by means of a'bevel gear-wheel, F, keyed or otherwise secured 'to the said shaft-E, the teeth of which intermesh with a pinion, G, secured to and mounted on the shaft j, as shown in Fig. 2. Continued reference to the same figure shows the lower bearing, 70, and step I, the first pre venting lateral movement of the, shaft E, the latter sufpport-ing the same at proper height. The sha tj also carries a pulley, H, securedthereto, which, as will be seen by referringto Fig. 1, receives motion through the barrel m from pulley n, secured to and mounted on the shaft 0. ,A second pulley, 12, mounted on the said shaft 0 and secured thereto, receives in any suitable manner from any suitable motor motion of sufficient power to operate the movable parts enumerated. The tires w of the rolls 0 are preferably made in sections and secured to a core or hub by keys or wedges driven through aperture'd ears or lugs thereof. (See Fig. 2.)

Having fully described the machinery for commiput-ing the ore, I will now proceed to ekplainhow, by this construction and parts hereinafter to be described, I am enabled to separate the metal from the earthy matter.

Surrounding the bed A, Figs. 1 and 2,-Sheet 1, is a curb, I, secured to the bed A by such means as will make the joint thereby formed water-tight, either" by cement, c'alking, or packing, and retained in place in any suitable manner-'.-in thisinstance by a circular hoop, q, drawn tight by nuts or clamps imthe usual manner.

Immediately above. the hoop q the curbI is made to flare out at an angle from a vertical line to a short distance when the wall of the said curb I is made vertical to a height approximatingthe center of the rolls 0. The curb I is provided withoneor more openings for the exit of the comminuted ore. r 4

As is well known to those skilled in the art to which this invention pertains, metallic particles of extreme fineness ground in water or other liquid are either held in suspension or will float on the liquid and flow away with the liquid.' In order to prevent such loss I make electrical connection from an electric generator to the bed A or rolls 0, or both, by the positive pole. Electrical connection is similarly made from the negative pole to plates s, that are electrically insulated from any and every part of the ore-crusher, thereby constituting the bed A and rolls G the anode and the plates 8 the cathode, whereby when 3 electrical excitement is produced the metalloids amenable to such treatment, whether in solution, suspension, or floating, will tend to deposit on the said plates 8 in such form as can subsequently be recovered.

In some casesit has beenfound advisable to reverse the poles, in which case, mercury being introduced in the groove of the wear- 'ing-plates B, the metals in solution or suspension will tend toward the mercury in common, with the larger and heavier particles.

Mercury may be and generallyis used whether connection b'e made with electric generator, so as to make "bed A and rolls 0 the anode, or vice versa. B insulatingthe inner curb, J, from the bed and the outer curb, I, from the said bed, the said plates .9 may be dispensed with or the insulation of them from the curb I made unnecessary. When the "mercury hasbecome s'ufficiently charged with metal, it may be drawn off through an orifice, t, Fig. 2, through one of the wearing-plates B, said hole t coinciding with asimilar hole in the bed A and closed at its lower extremity by a suitable gate or valve, which also supports a fluted pin', upon-which, at its upper end, ore is crushed, while by means of the flutes the mercury freely asses.

' Having thus describedmy invention, claim as new and desire to secure by Letters Patent- In an ore-crusher and metal-separatormade substantially 'as described, the combination of the bed A, plates 3,1011; 0, with the curb I, provided with one or more openings fitted with screws, with the insulated plate or plates .8, electric excitant, and 'c'onnections therewith, substantially as and for the purpose hereinbefore set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 22d day of September, 1887;

moos- CHARLES WISWELL.

Witnessesi G. F. BRow'N, A. D. HARRISON. 

